创建我的用户时，参数数量错误（0表示1）

我知道有很多问题，但我无法找到答案。

所以，我构建了一个Rails 4 API，我尝试创建一个发布JSON请求的用户。

这里有一些我的代码：

user.rb：

class User  "Position", foreign_key: "position_current_id" has_many :positions searchkick locations: ["location"] def search_data attributes.merge location: [current_position.latitude, current_position.longitude] end devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable end 

application_controller.rb

 class ApplicationController < ActionController::Base respond_to :json, :html protect_from_forgery with: :null_session, if: Proc.new { |c| c.request.format =~ %r{application/json} } end 

registrations_controller.rb

 class Api::RegistrationsController  {:token => user.authentication_token, :email =>user.email}, :status=>201 return else warden.custom_failure! render :json =>user.errors, :status=>422 end end def user_params params.require(:user).permit(:email, :password, :password_confirmation, :username) end end 

所以我尝试发送带有以下参数的请求

 {"user":{"email":"[e-mail]", "password" : "123456789", "password_confirmation" : "123456789", "username" : "toto"}} 

但是我收到以下错误：

 started POST "/signup.json" for 127.0.0.1 at 2014-11-30 13:27:02 +0100 Processing by Api::RegistrationsController#create as JSON Parameters: {"user"=>{"email"=>"[e-mail]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "username"=>"toto"}, "registration"=>{"user"=>{"email"=>"[e-mail]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "username"=>"toto"}}} (0.1ms) begin transaction (0.1ms) rollback transaction Completed 500 Internal Server Error in 95ms ArgumentError (wrong number of arguments (0 for 1)): app/controllers/api/registrations_controller.rb:19:in `create' Rendered /Users/billey_b/.rvm/gems/ruby-2.1.1/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templates/rescues/_source.erb (1.5ms) Rendered /Users/billey_b/.rvm/gems/ruby-2.1.1/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.2ms) Rendered /Users/billey_b/.rvm/gems/ruby-2.1.1/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.0ms) Rendered /Users/billey_b/.rvm/gems/ruby-2.1.1/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (17.9ms) 

所以我有点绝望，所以如果有人有一些言论来澄清我，那就太棒了。 谢谢

编辑：

我的用户架构

  create_table "users", force: true do |t| t.string "email", default: "", null: false t.string "name" t.datetime "created_at" t.datetime "updated_at" t.string "firstname" t.string "lastname" t.integer "age" t.string "gender" t.string "avatar" t.datetime "birth" t.string "status" t.string "username" t.string "password_digest" t.string "encrypted_password" t.string "authentication_token" t.integer "position_current_id" end 

我也使用这个gem https://github.com/gonzalo-bulnes/simple_token_authentication

Answer 1

好的我发现了问题，我换了：

 class User < ActiveRecord::Base acts_as_token_authenticatable has_secure_password belongs_to :current_position, :class_name => "Position", foreign_key: "position_current_id" has_many :positions searchkick locations: ["location"] def search_data attributes.merge location: [current_position.latitude, current_position.longitude] end devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable end 

这样 ：

 class User < ActiveRecord::Base acts_as_token_authenticatable has_secure_password belongs_to :current_position, :class_name => "Position", foreign_key: "position_current_id" has_many :positions searchkick locations: ["location"] def search_data attributes.merge location: [current_position.latitude, current_position.longitude] end end 

它现在正在运作